Baños de Agua Santa, commonly referred to as Baños, is a city in eastern Tungurahua Province, in central Ecuador. Baños is the second most populous city in Tungurahua, after Ambato, the capital, and is a major tourist center. It is known as the "Gateway to the Amazon", as it is located on the Pastaza River in the Amazon River basin, and has a newly paved road to Puyo.